diff --git a/swh/loader/git/tests/__init__.py b/swh/loader/git/tests/__init__.py
--- a/swh/loader/git/tests/__init__.py
+++ b/swh/loader/git/tests/__init__.py
@@ -20,6 +20,9 @@
                     'release': 10,
                 },
             },
+            {
+                'cls': 'validate',
+            },
             {
                 'cls': 'memory'
             },